摘要
简单介绍了巯基功能化二氧化硅的种类及其制备。详细综述了巯基功能化介孔二氧化硅吸附剂和巯基功能化二氧化硅凝胶吸附剂,其中由于巯基对Hg^(2+)有很强的酸碱相互作用,在众多重金属离子中,巯基功能化介孔二氧化硅吸附剂和巯基功能化二氧化硅凝胶吸附剂对Hg^(2+)具有更好的吸附能力。最后综述了溶液pH值、吸附温度、吸附时间以及共存离子对Hg^(2+)吸附过程的影响,并探讨了巯基功能化二氧化硅的再生性能。最后展望了其在含Hg^(2+)污水治理行业的实际应用以及面临的机遇与挑战。
The research briefly introduced the type and the preparation of thiol(-SH)functionalized silica.Due to the strong acid-base interaction between the thiol group and Hg^(2+),the thiol functionalized mesoporous silica adsorbent and the thiol-functionalized silica gel adsorbent have better adsorption capacity for Hg^(2+).Besides,the effects of pH value,adsorption temperature,adsorption time and coexisting ions on the adsorption process of Hg^(2+)were summarized.The regeneration performance of thiol functionalized silica was also discussed.Finally,the practical application of Hg^(2+)waste water treatment industry,the opportunities and challenges it faces,and the application prospect are prospected.
作者
李立强
LI Li-qiang(School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《广州化学》
CAS
2022年第4期7-14,共8页
Guangzhou Chemistry
